Aerobic Heterotrophic Bacterial Populations of Sewage and Activated Sludge: I. Enumeration1
AUTOR(ES)
Prakasam, T. B. S.
RESUMO
Agar plating media containing solely activated sludge extracts yielded, in general, higher viable counts of activated sludge bacteria than any other culture medium tested. Activated sludge extracts made from different treatment plants varied in efficacy in evoking maximal viable counts. Frequently, homologous plating, i.e., plating inocula of activated sludges on extracts made from the same activated sludges, tended to yield lower counts than the heterologous platings tried in this investigation. The counts obtained by homologous plating of activated sludge were not significantly lower and sometimes were even significantly higher than the counts obtained on standard Nutrient Agar, which had been found by previous workers to be a good medium for counting activated sludge bacteria. The higher counts obtained with activated sludge extracts set objectives for formulating reproducible or defined culture media for the enumeration of activated sludge bacteria.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=546943Documentos Relacionados
- Aerobic Heterotrophic Bacterial Populations of Sewage and Activated Sludge: IV. Adaptation of Activated Sludge to Utilization of Aromatic Compounds 1
- Aerobic Heterotrophic Bacterial Populations of Sewage and Activated Sludge: V. Analysis of Population Structure and Activity
- Aerobic Heterotrophic Bacterial Populations of Sewage and Activated Sludge1: II. Method of Characterization of Activated Sludge Bacteria
- Aerobic Heterotrophic Bacterial Populations of Sewage and Activated Sludge1: III. Adaptation in a Synthetic Waste
- Microbial Ecology of Activated Sludge: I. Dominant Bacteria
